{"product_id":"decat-downpipes","title":"Decat Downpipes","description":"The Alpha Competition Decat Downpipes are a high-performance exhaust component specifically designed for the Audi RS4 B9 and RS5 F5 models that are not equipped with OPF\/GPF (Otto Particulate Filter\/Gasoline Particulate Filter).\n\nConstructed from premium 100% T304 stainless steel, these downpipes feature handmade TIG welds for superior durability and a clean finish. The pipe diameter transitions from 4.5\" (114.3mm) down to 3\" (76mm), allowing for optimized exhaust flow.\n\nThese downpipes are intended to remove the factory catalytic converters, which contributes to an aggressive exhaust note and improved performance. A gain of approximately 34hp is noted on stage 1 tuned engines.\n\nIt is mandatory to perform an ECU calibration after installing these downpipes. These downpipes are explicitly not compatible with versions of the Audi RS4 B9 or RS5 F5 that are equipped with OPF\/GPF.","brand":"Alpha Competition","offers":[{"title":"Default Title","offer_id":52686888436024,"sku":"AC-B9RS-DP","price":609.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/662148243.jpg?v=1784878077","url":"https:\/\/store.motormia.co\/products\/decat-downpipes","provider":"MOTORMIA","version":"1.0","type":"link"}